It is obvious from your posts that you are not reading or understanding the solution regarding grounding and bonding.
First of all, do not confuse the 12 volt and 120 volt system. They are separate systems, and must remain that way. What we are discussing is the 120 volt system and its wiring schematics. If you have the bond(bare copper wire connected to chassis and the ground from the shore power connected to a common bar in the fuse panel, you will trip a GFI protected circuit. That is because the GFI measures the potential difference between the ground and hot wire of the GFI
Look in your breaker box and see if these wires are connected. The other way I mentioned is to take an ohm meter and check the continuity between the spades on the male plug. With the main breaker off. there should not be any continuity between any of these spades.
If this is too confusing, I suggest you have an electrician look at your system.
QUOTE(Dallas Walker @ Sep 26 2007, 09:34 PM)
QUOTE(John Blue @ May 2 2007, 10:51 PM)
You have a leak in your system someplace. The GFI is used to check current from hot wire 120 volts to ground wire. If current is not the same on each lead then GFI will trip off. The current leak can be very low and trip. Number of ways to run this down. You need to be very carefully as 120 volts can kill you. As little as 10 ma will do the job.
!. Remove power cable from MH then plug in cable at power post and see if cable is bad.
2. Open each ckt. brk one at time and see if that will fix it.
3. If all ckt brks are open and you have a trip, open leads that come into AC power box
to see if that will fix it.
4. If you have a gen set then you will have a tranfer relay. In this box you have wires from outside power and wires from gen set. One set of wires will come off this relay and go to AC power box to feed MH. Open up wires to you see problem drop off them add them back one at the time to see problem zone.
You need to remove power cable at post each time you open or rehook any wires. The trick is to open up the load points one by one to see the fault.
I found one problem due to water in wires under ground. I guess it was a leak.
Your check list is very informative.
I have checked each item and still have the problem.
When I first plug in to shore power I have a slight imbalance between hot and netural but no measurable current on the ground. When you are refering to bonding vs ground, do you mean that the chassie ground used for the DC circuits and the AC ground should be isolated? I have a wire connected from my AC ground bus to the Chassie ground, when I remove it the external GFI still trips. I'm sooo confused.